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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#39006 | #1274. Walking Plan | wyhao | WA | 222ms | 3416kb | C++ | 1.4kb | 2022-07-08 11:24:09 | 2022-07-08 11:24:17 |
Judging History
answer
#include<cstdio>
#include<cstring>
using namespace std;
const int N=55,INF=0x3f3f3f3f;
int T,n,m,q,s,t,K;
int a[N][N];
int min1(int x,int y){
return x<y?x:y;
}
int f[N][N][155];
int G[N][N][10];
int main(){
scanf("%d",&T);
while(T--){
scanf("%d%d",&n,&m);
memset(a,0x3f,sizeof a);
for(int i=1,x,y,w;i<=m;i++){
scanf("%d%d%d",&x,&y,&w);
a[x][y]=min1(a[x][y],w);
}
for(int i=1;i<=n;i++){
for(int j=1;j<=n;j++) f[i][j][1]=a[i][j],G[i][j][0]=f[i][j][0]=INF;
f[i][i][0]=G[i][i][0]=0;
}
for(int ii=2;ii<=150;ii++){
for(int i=1;i<=n;i++){
for(int j=1;j<=n;j++){
int mi=INF;
for(int k=1;k<=n;k++){
mi=min1(mi,f[i][k][ii-1]+a[k][j]);
}
f[i][j][ii]=mi;
}
}
}
for(int i=1;i<=n;i++){
for(int j=1;j<=n;j++) G[i][j][1]=f[i][j][100];
}
for(int ii=1;ii<=7;ii++){
for(int i=1;i<=n;i++){
for(int j=1;j<=n;j++){
int mi=INF;
for(int k=1;k<=n;k++){
mi=min1(mi,G[i][k][ii-1]+G[k][j][ii-1]);
}
G[i][j][ii]=mi;
}
}
}
for(int ii=149;~ii;ii--){
for(int i=1;i<=n;i++){
for(int j=1;j<=n;j++){
f[i][j][ii]=min1(f[i][j][ii],f[i][j][ii+1]);
}
}
}
scanf("%d",&q);
while(q--){
scanf("%d%d%d",&s,&t,&K);
int a=K/100,b=K%100;
int mi=INF;
for(int i=1;i<=n;i++){
mi=min1(mi,G[s][i][a]+f[i][t][b]);
}
if(mi==INF) puts("-1");
else printf("%d\n",mi);
}
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 1696kb
input:
2 3 3 1 2 1 2 3 10 3 1 100 3 1 1 1 1 2 1 1 3 1 2 1 1 2 1 1 2 1 1
output:
111 1 11 -1
result:
ok 4 lines
Test #2:
score: -100
Wrong Answer
time: 222ms
memory: 3416kb
input:
10 5 10 4 2 55 2 1 26 3 4 83 5 2 16 4 5 54 3 4 38 2 1 68 2 5 1 4 5 85 4 2 60 20 2 1 13 1 4 17 3 2 20 2 4 16 4 2 17 4 2 2 3 1 2 1 5 10 2 1 8 4 5 15 4 2 16 3 1 18 5 2 7 4 2 9 4 3 16 1 4 18 3 2 5 1 5 9 5 1 19 1 2 16 20 50 4 16 25 3 16 990 9 18 863 19 12 236 4 10 360 13 4 585 14 17 164 8 18 198 2 17 804...
output:
128 -1 246 -1 191 70 119 -1 94 173 189 253 67 123 -1 -1 125 -1 195 -1 -1 23449 3476 18735 17412 23124 29499 26452 9757 21128 9524 -1 4486 8797 8041 33717 32669 5108 32534 13020 22800 4411 3529 2580 4191 15863 5342 22005 -1 14496 16535 13644 -1 33956 28717 24721 13816 26289 8840 28137 9991 14430 -1 3...
result:
wrong answer 44th lines differ - expected: '37460', found: '2580'